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Home >> GMC >> 2016 >> Yukon Denali, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 91 (Object Detection System And Pedestrian Protection System) >> Repair Instructions >> Forward Range Radar Module Inspection (Chevrolet / GMC)
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Forward Range Radar Module Inspection (Chevrolet / GMC)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2015 GMC Yukon XL, 2015 GMC Yukon, 2015 Chevrolet Tahoe, 2015 Chevrolet Suburban, and 2015 Cadillac Escalade ESV. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the front bumper fascia. Refer to Front Bumper Fascia Replacement (GMC)Front Bumper Fascia Replacement (Chevrolet) .
  2. Fig 1: Ball Sockets, Studs And Forward Range Radar Module
    GM3638079Courtesy of GENERAL MOTORS COMPANY
  3. CONTROL MODULE DTC CHECK - Using a scan tool, perform the Vehicle DTC Information function-Verify there are no current control module DTCs set. If any DTC is set, refer to Diagnostic Trouble Code (DTC) List - Vehicle .
  4. Inspect the forward range radar module (4) for vertical alignment. Refer to Forward Range Radar Module Alignment (Chevrolet / GMC) .
  5. Check the 3 ball sockets (5) for fixed seating. If the ball sockets are damaged replace the ball sockets.
  6. Inspect all studs (1) for proper seat. If damaged, replace the bracket. Refer to Forward Range Radar Module Replacement (Chevrolet / GMC) .
  7. Inspect the forward range radar module bracket (2) for paint cracks and deformations. Do NOT repair any cracks or misalignments. If damaged, replace the bracket. Refer to Forward Range Radar Module Replacement (Chevrolet / GMC) .
  8. Inspect the wiring harness plug (3) and the terminal of the forward range radar module for any damage.